Why it works: Cucumber and arrowroot share more aroma than cooks usually use. They rank in the top 5% of all ingredient pairs, and cooks put them together in 28 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Good Vegetable Mullagatawny
makes 2 quartsIngredients
Directions
Make the base
Melt the butter in a large stewpan or thick iron saucepan until just browning.
Add the sliced onions, vegetable marrow, cucumbers, and acid apples.
Stir and cook over gentle heat until tender.
Mix in the curry powder and salt.
Stew for an additional 20 to 30 minutes.
Gradually add enough boiling water to cover the vegetables.
Cook until reduced to a pulp.
Strain and finish
Press the mixture through a fine sieve into a clean stewpan.
Add enough liquid to make 2 quarts.
Adjust seasoning with salt, cayenne, or acid as needed.
If butter appears on the surface, skim it off.
Stir in arrowroot to absorb it.
Serve hot.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
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Cucumber + arrowroottop 5% of all pairsSmell alikestrongCooked together28 recipes
Shared aroma: coumarin (sweet, hay).
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Onion + cucumbertop 8% of all pairsSmell alikestrongCooked together6,050 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + arrowroottop 11% of all pairsSmell alikestrongCooked together340 recipes
Shared aroma: coumarin (sweet, hay).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Cucumber + peppertop 12% of all pairsSmell alikemoderateCooked together5,991 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Browns gently at the start, adding a rich, nutty flavour and fat to the base.
- Onions
- Soften and sweeten as they cook, building the body of the soup.
- Vegetable marrow
- Breaks down to a pulp, giving the soup its bulk and smooth texture.
- Cucumbers
- Add moisture and a mild, fresh flavour that softens as they cook.
- Acid apples
- Provide tartness that balances the curry powder and sweetness of the vegetables.
- Curry powder
- Supplies the spice and aroma that defines the dish.
The step that matters
Cook until reduced to a pulp. The vegetables must break down fully so the sieved soup is smooth; under-cooked pieces will not pass through the sieve and leave a grainy texture.
Swap the arrowroot
The recipe marks arrowroot as optional. How well each one fits the dish's main ingredients (butter, onion, cucumber, apple, pepper):
- Capsicumfits better
- Chivefits better
- Radishfits better
- Arrowrootthe original
Fit is the average pairing score against butter, onion, cucumber, apple, pepper. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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